1. A dendritic cell-recruiting, antimicrobial blood clot hydrogel for melanoma recurrence prevention and infected wound management.
- Author
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Liu WS, Lu ZM, Pu XH, Li XY, Zhang HQ, Zhang ZZ, Zhang XY, Shi T, Jiang XH, Zhou JS, Zhou X, Xin ZY, Li MG, Yuan J, Chen CM, Zhang XW, Gao J, and Li M
- Subjects
- Animals, Humans, Neoplasm Recurrence, Local prevention & control, Mice, Inbred C57BL, Anti-Infective Agents therapeutic use, Anti-Infective Agents pharmacology, Mice, Cell Line, Tumor, Female, Hydrogels chemistry, Dendritic Cells immunology, Dendritic Cells drug effects, Melanoma therapy, Melanoma pathology, Wound Healing drug effects
- Abstract
Surgical resection, the mainstay for melanoma treatment, faces challenges due to high tumor recurrence rates and complex postoperative wound healing. Chronic inflammation from residual disease and the risk of secondary infections impede healing. We introduce an innovative, injectable hydrogel system that integrates a multifaceted therapeutic approach. The hydrogel, crosslinked by calcium ions with sodium alginate, encapsulates a blood clot rich in dendritic cells (DCs) chemoattractants and melanoma cell-derived nanovesicles (NVs), functioning as a potent immunostimulant. This in situ recruitment strategy overcomes the limitations of subcutaneous tumor vaccine injections and more effectively achieves antitumor immunity. Additionally, the hydrogel incorporates Chlorella extracts, enhancing its antimicrobial properties to prevent wound infections and promote healing. One of the key findings of our research is the dual functionality of Chlorella extracts; they not only expedite the healing process of infected wounds but also increase the hydrogel's ability to stimulate an antitumor immune response. Given the patient-specific nature of the blood clot and NVs, our hydrogel system offers customizable solutions for individual postoperative requirements. This personalized approach is highlighted by our study, which demonstrates the synergistic impact of the composite hydrogel on preventing melanoma recurrence and hastening wound healing, potentially transforming postsurgical melanoma management., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2025
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